WebRTC File Sharing i.e. Data Sharing / Demo

DataConnection.js library lets you:

1. Share file of any size
2. Share text message of any length
3. Text data regardless of the size and type

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First Step: Link the library

<script src="https://www.webrtc-experiment.com/data-connection.js"></script>

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Last Step: Start using it!

var connection = new DataConnection( /* 'optional::firebase-channel' */ );

// check pre-established connections
connection.check('connection-name');

document.getElementById('setup-new-connection').onclick = function() {
    connection.setup('connection-name');
};

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Text Chat i.e. Text Sharing

connection.send('longest possible text message');

You may want to share direct messages:

connection.channels['user-id'].send('longest possible text message');

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File Sharing

connection.send(file);

You may want to share file between two unique users directly:

connection.channels['user-id'].send(file);

Extra events:

// show progress bar!
channel.onFileProgress = function (e) {
    // e.userid
    // var packets = e.packets;
	
    // packets.remaining
    // packets.sent      (for sender)
    // packets.received  (for receiver)
    // packets.length
};

// on file successfully sent
channel.onFileSent = function (e) {
    // e.userid
    
    // var file = e.file;
    // file.name
    // file.size
};

// on file successfully received
channel.onFileReceived = function (e) { /* e.fileName, e.userid */ };

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Errors Handling

// error to open data connection
connection.onerror = function(e) {}

// data ports suddenly dropped
connection.onclose = function(e) {}

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Custom user-ids?

connection.userid = 'username';

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Custom signaling channel?

You can use each and every signaling channel:

1. SIP-over-WebSockets
2. WebSocket over Node.js/PHP/etc.
3. Socket.io over Node.js/etc.
4. XMPP/etc.
5. XHR-POST-ing

connection.openSignalingChannel = function(callback) {
    return io.connect().on('message', callback);
};

If you want to write socket.io over node.js; here is the server code:

io.sockets.on('connection', function (socket) {
    socket.on('message', function (data) {
        socket.broadcast.emit('message', data);
    });
});

That's it! Isn't it easiest method ever!

Want to use Firebase for signaling?

// "chat" is your firebase id
connection.firebase = 'chat';

Want to use XHR, WebSockets, SIP, XMPP, etc. for signaling? Read this post.

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Want to manually join rooms?

connection.onconnection = function(room) {
    var button = document.createElement('button');
    button.onclick = function() {
        connection.join(room);
    };
};

onconnection is called for each new data connection; and join method allows you manually join previously created connections.

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If someone leaves...

Participants' presence can be detected using onuserleft:

connection.onuserleft = function(userid) {
    console.debug(userid, 'left');
};

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Browser Support

This DataConnection.js library is compatible to following web-browsers:

Browser	Support
Firefox	Stable / Aurora / Nightly
Google Chrome	Stable / Canary / Beta / Dev
Android	Chrome Beta

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License

DataConnection.js is released under MIT licence . Copyright (c) 2013 Muaz Khan.